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  1. Symptoms of COVID-19 | Covid | CDC

    2025年3月10日 · Influenza (Flu) and COVID-19 are both contagious respiratory illnesses, but they are caused by different viruses. …

  2. COVID-19 - Wikipedia

    Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. Starting in January 2020, …

  3. Coronavirus Disease 2019 (COVID-19) | Covid | CDC

    Treatment Learn about the types of COVID-19 treatments, symptom management, and recovery.

  4. COVID-19 pandemic - Wikipedia

    The global COVID-19 pandemic (also known as the coronavirus pandemic), caused by severe acute respiratory syndrome …

  5. New COVID Variant 'Cicada' Is Spreading in 31 States. These Are Its ...

    2026年4月13日 · BA.3.2, aka "cicada," is a highly mutated new COVID variant detected in the U.S.. Here's where it's spreading and …

  6. Respiratory illness data dashboards - King County, Washington

    This page shows respiratory illness data for COVID-19, influenza, RSV, and other respiratory pathogens for King County, WA. For …

  7. Coronavirus disease 2019 (COVID-19) - Symptoms and causes

    Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and …

  8. Coronavirus Symptoms: Early Signs, Serious Symptoms - WebMD

    2026年5月31日 · Learn about coronavirus symptoms, including early signs, common illness indicators, potential complications, …

  9. Coronavirus - World Health Organization (WHO)

    2026年8月6日 · Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected …

  10. What's Going Around Near You? Flu, COVID, RSV & More by State or …

    2026年10月24日 · Find out what's going around near you right now — flu activity, COVID-19 levels, RSV, measles, and local health …